B-BALL BARYOGENESIS AND THE BARYON TO DARK MATTER RATIO

作者: Kari Enqvist , John McDonald

DOI: 10.1016/S0550-3213(98)00695-6

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摘要: We demonstrate that B-ball decay in the MSSM can naturally solve puzzle of why densities baryons and dark matter Universe are similar. This requires B-balls survive thermalization below freeze-out temperature neutralino LSP, typically 1-10 GeV, It is shown this happen if baryon asymmetry originates from a squark condensate along d = 6 u(c)d(c)d(c) D-flat direction scalar potential. For to work reheating after inflation must be no greater than 10(3-5) GeV.

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